Originally Posted by
TrojanHorse
Manufacturers claim that BB30 is stiffer than English but unfortunately, it's also squeakier.
I test-rode a couple of '13 bikes recently with BB30's and I noticed that they seemed squeaky/noisy near the crank. I wasn't sure what it was, but after reading this thread, perhaps it was the BB30. I also test rode a model that did not have a BB30 and it was quieter/normal. Perhaps it was something else, but I can think of what else it might have been, since I was not shifting and all of the bikes were by the same manufacturer.